Q. I have already activated all the installed VOCALOID products. However, when I try to start VOCALOID4 Editor, I get a message saying "One or more VOCALOID components are not authorized! Please activate VOCALOID.", and the software cannot be started.
1) Do you have any VOCALOID products for which installation failed? If so, uninstall the product that has not been installed correctly.
2) Verify that your computer has the correct system time.